Demountable rim.



L. M. COOPER,

DEMQNTABLE mm.

APPLICATION `HLAED MAY h i916.

Patented Apr. 17, 1917.

autoweg;

suATnsrATENrorrron.

Application led May 1,

3.7%@ @ZZ whom t may concern r l Bent, known l.thatv I, .LYMAN M. COOPER, a citizeniof the United Statesof America, residing at Detroit, in the county of Wayne 'andState of Michigan, haveinvented certain new and usefullmprovements in iDe-A mountable Rims, of'. which the following is a by the demountable rim can be easily and quickly removed from a wheel and a new tire or demountable rim substituted therefor.

A further object of my invention is to provide'a demoun'table rim fastening means consisting of .comparatively few parts thatl are inexpensive to manufacture, durable and v highly. etlicient for the wheels of an automobile. t

l' attain the above and other objects by a mechanical construction that will be hereinafter specifically described and then claimed,

and reference will now be had to the drawin g, wherein Figure 1 isa side elevation of a portion of a wheel provided with a demountable rim, and fastening 4means in accordance with my invention Y Fig. 2 is an enlarged elevation of the outer side of a portion of the demountable run;

Fig. 31s a cross sectional view taken on the line H2L-III of Fig. 2';

Fig. 4 is an elevation of the inner side of a demountable rim, illustrating a v slight modification of my invention;

Fig. 5 is a cross sectional view taken on the iine V-V of Fig. 4; v

Fig. 6 is a perspective viewof a portion form;

Fig. 7 is a perspective view of the outer of a portion ofthe Xed rim of the errcdform of construction; and

i' ig. l3 is a plan of the inner side of a por :wn of the preferred form of fixed rim.

el hub having spokes 2 supporting a i Specification of Letters Patent.

of :fixed rim forming part .of the modified in the drawing, 1 denotes a portion of a 3 provided with a Xed rim 4. The

if. "g'zw l r. r i man; igtcfoornn.,v oEnnTnoIT, MroHIeAN, AssIGNoR or ONE-HALF re Ansus'r.. .l anni, orowossd MICHIGAN.

i vnnlvrounrnnnn RIM. 'Y

.Patented Apr. i?, 1917. 1916.4 Serial N0. 94,555.

3 in the usual and well known manner and said fixed rimis of a greater width than the periphery-.of the felly, said-fixed rim having arry outer fiat'edge 5 provided with spaced depressed yoke portions 7 registering with transverse grooves 8 in the periphery of the felly 3, beneath the Xed rim 4. The Xed rim 4 hasthe-inner edge thereof curved outwardly, as4 at 9, and connected thereto by rivets 10 or other fastening means are spaced stationary nuts 11 in transverse alinement with the grooves 8 of the felly 3. Mounted upon the fixed rim 4 and slidable thereon from the outer edge 5 of said fixed rim lis a demountable rim 12v limited in its sliding on movement by the curved outer edge 9 of the Xed rim. The demountable rim has clencher edges v13 and is adapted for holding a pneumatic tire 14.

The outer edgeof the demountable rim 12.

is provided with spaced-f lugs 15 riveted or otherwise connected tothe demountable rim, as at 16, and projecting inwardly, said lugs corresponding in spacing and number to the yoke depressions 6 of the fixed rim 4, whereby said lugs can extend into the yoke depressions, as best shown in Figs. 3 and 8. The lugs 15 are apertured to receive boltsl and these bolts are adapted to extend yth-roughthe grooves 8 of the felly 3, into screwthreaded engagement with' the stationary lugs 11, carried by the fixed rim 4, thereby locking the demountable rim 12 against lateral or circumferential shifting upon the :fixed rim 4. The stationary nuts l1 are-shaped lto conform to andbrace the curved inner edge 9 of the fixed rim 4, and the lugs 12 are shaped toconform to and brace the outer clencher edge 13 of the demountable rim 12.

j In Figs. 4 to 6 inclusive, there is illustratedf'a slight modification of my .invention, particularly in connection with the inner edge of a fixed rim 18. The inner edge of the 'rim 18 is flat, similar to the outer edge thereof, but is slotted, as at 19, to receive a stationary nut riveted or otherwise connected to the'lixed rim 18, as at 21. The nuts 20 are shaped to'brace the inner clencher `edge of a demountable 'rim 22, and

said nuts are adapted to be lheld by transl verse bolts v. 23'y in a manner similar to the preferred form of-construction.-

It is thought that the manner of removing a demountable rim relative to la wheel .will

lie apparent 1without flii'ther description, and ii'liile iii the drawings, there are illustrated a preferred einhediiiient ot'k iiiy invention, it ie to he understood that the Structural eleniente are susceptible to such variations and niodil'eations as fall within the scope of the appended ('laiiii.

ll'liat I claini is:-

'In a vehicle wheel, a wood 'elly` having transverse peripheral grooves, a fixed rim on said telly having a curved inner edge and depressions at the outer edge thereof. said fixed iini closing' said telly grooves with the .xi-eptioii of the ends thereof and having' its depressions registering; with the ends of said grooves, nuts riveted to the inner edge ot' with, a deiiiountable rini on said fixed rimA having;` lugs secured thereto and extending into the depressions of said fixed rim, and

screw bolts extending;l through the lugs 0fsaid deniountable riiii and through the.

grooves of said wood telly into the n'iits carried by said fixed rim.

In testimony whereof I affix my signature iii presence ot tivo witnesses.

LYMAN M. COOPER.

ll'vitnesses:

LEWIS E. Fiixxnniis, ANNA M. Donn. 

